1. Volin, Yu.M. and Ostrovskii, G.M., A Method of Successive Approximations for Calculating Optimal Modes of Some Distributed-Parameter Systems, Autom. Remote Control, 1965, vol. 26, no. 7, pp. 1188–1195.
2. Butkovskii, A.G., Teoriya optimal’nogo upravleniya sistemami s raspredelennymi parametrami (Theory of Optimal Control of the Distributed-parameter Systems), Moscow: Nauka, 1965.
3. Gornov, A.Yu., Numerical Methods to Study the Problems of Optimal Control in Mechanical Systems, Mekhatronika, Avtomatiz., Upravlen., 2010, no. 8 (113), pp. 2–7.
4. Teo, K.L., Goh, C.J., and Wong, K.H., A Unified Computational Approach to Optimal Control Problems, Pitman Monographs and Surveys in Pure and Applied Mathematics, vol. 55, Harlow: Longman, 1991.
5. Sadek, I. and Kucuk, I., A Robust Technique for Solving Optimal Control of Coupled Burger’s Equations, IMA J. Math. Control Inf., 2011, vol. 28, pp. 239–250.